GB561087A - Improvements in or relating to air speed indicators - Google Patents

Improvements in or relating to air speed indicators

Info

Publication number
GB561087A
GB561087A GB1453042A GB1453042A GB561087A GB 561087 A GB561087 A GB 561087A GB 1453042 A GB1453042 A GB 1453042A GB 1453042 A GB1453042 A GB 1453042A GB 561087 A GB561087 A GB 561087A
Authority
GB
United Kingdom
Prior art keywords
tube
pitot
air
static chamber
coefficient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1453042A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEOFFREY DEVAS EVERINGTON
Rosemount Measurement Ltd
Original Assignee
GEOFFREY DEVAS EVERINGTON
KDG Instruments Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEOFFREY DEVAS EVERINGTON, KDG Instruments Ltd filed Critical GEOFFREY DEVAS EVERINGTON
Priority to GB1453042A priority Critical patent/GB561087A/en
Publication of GB561087A publication Critical patent/GB561087A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

561,087. Air-speed indicators. K.D.G. INSTRUMENTS, Ltd., and EVERINGTON, G. D. Oct. 16, 1942, No. 14530. [Class 69 (i)] In an air-speed indicator with means for converting the velocity head of an air-stream into a pressure head, and an indicator. responsive to changes in pressure heads and moving a pointer over a scale, means responsive to changes in external absolute pressure conditions are provided for varying the constant or coefficient of the means which convert the velocity head to pressure heads. As shown, a Pitot-tube 13 is open at both front and rear ends 14, 15 and supported by a streamlined strut 11; it is surrounded by a tube'16 with openings 20 leading to a static chamber 21. The static chamber 21 and Pitot-tube 13 are connected by tubes 22, 28 respectively to an air-speed indicator 23, and the tube 22 has a branch 24 leading to a temperature-compensated aneroid pressure-responsive device 25 which progressively opens, butterfly valve 27 in the Pitot-tube as the height above sea level is reduced, so reducing the coefficient of the Pitot-tube. The static chamber and Pitot-tube 'may be separate. Instead of, or in addition to, varying the coefficient of the Pitot-tube, the static chamber may be replaced by a venturi device, the size of the throat of the latter being varied by the device 25.
GB1453042A 1942-10-16 1942-10-16 Improvements in or relating to air speed indicators Expired GB561087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1453042A GB561087A (en) 1942-10-16 1942-10-16 Improvements in or relating to air speed indicators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1453042A GB561087A (en) 1942-10-16 1942-10-16 Improvements in or relating to air speed indicators

Publications (1)

Publication Number Publication Date
GB561087A true GB561087A (en) 1944-05-04

Family

ID=10042860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1453042A Expired GB561087A (en) 1942-10-16 1942-10-16 Improvements in or relating to air speed indicators

Country Status (1)

Country Link
GB (1) GB561087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043142A (en) * 1958-09-23 1962-07-10 Singer Inc H R B Device for measuring supersonic and subsonic speeds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043142A (en) * 1958-09-23 1962-07-10 Singer Inc H R B Device for measuring supersonic and subsonic speeds

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